53213130 has 48 divisors (see below), whose sum is σ = 138869640. Its totient is φ = 14137344.

The previous prime is 53213123. The next prime is 53213159. The reversal of 53213130 is 3131235.

53213130 is a `hidden beast` number, since 532 + 1 + 3 + 130 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 24472809 + 28740321 = 4947^2 + 5361^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27226 + ... + 29114.

Almost surely, 2^53213130 is an apocalyptic number.

53213130 is an abundant number, since it is smaller than the sum of its proper divisors (85656510).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53213130 is a wasteful number, since it uses less digits than its factorization.

53213130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215 (or 2212 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 53213130 is about 7294.7330314412. The cubic root of 53213130 is about 376.1314096661.

Adding to 53213130 its reverse (3131235), we get a palindrome (56344365).

The spelling of 53213130 in words is "fifty-three million, two hundred thirteen thousand, one hundred thirty".